The main root of parsley is relatively short, with many lateral roots, which can grow to 20-100 cm. The stem is very erect and smooth with branches.
The root of coriander is very long and thin, and there are many branched roots on it. The length of the two is almost the same. The stem is cylindrical, also erect and smooth.
The leaves of parsley are triangular to broadly ovate in outline, about 2-14cm in length and 3-17cm in width. In general, it is 3 leaflets, the middle leaflet is rhombic obovate or heart-shaped, and the leaves on both sides are inclined obovate to long ovate.
The leaf edge of coriander has blunt serration or deep crack, the length is about 1-2cm, the width is about 1-1.5cm.
The flowers are white, obovate, 1 - 1. 2 mm long and 1 mm wide.
The flower of coriander is white and a little lavender. Its petals are obovate, and its length is about 1-1.2 mm.